Window-screen device.



C(J. CARI-SON.

- WINDOW SCREEN DBVIGE.

rrmouxou mum MAY 5, 1911.

Patented July 9, 19 12.

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CHARLES J. CARLSON, OF HELENA, MONTANA.

WINDOW-SCREEN DEVICE.

osaiio.

Specification of Letters Patent.

Patented July 9, 1912.

Application filed May 5, 1911. Serial No. 625,233.

To all QU/L-OHL it may concern.

Be it known that I, CHARLES J. CARLsoN, citizen of the United States, residing at Helena, in the county of Lewis and Clark and State of Montana, have invented cer tain new and useful Improvements in indow-Screen Devices, of which the following is a specification.

This invention relates to window and porch screens, and more particularly to the construction of the slide rails for support ing the screen in the window frame or porch frame. 4

The invention also aims to disclose a novel means for holding the screen at any desired elevation, the means being arranged within the channels of the slide rails and being so constructed as to permit of the ready removal of the screen from the win dow or porch frame.

For a full understanding of the invention reference is to be had to the following description and accompanying drawings, in which: I

Figure l is a view' in elevation of the screen embodying the present invention mounted in a window frame; Fig. 2 is a detail vertical transverse sectional View through one of the upper corners of the screen; Fig. 3 is a similar View through the opposite upper corner; Fig. t is a detail horizontal sectional view showing the slide rail; Fig. 5 is a detail view in elevation illustrating a slight modification of the invention; and Fig. 6 is a horizontal sec tional view through the structure shown in Fig. 5. Fig. 7 is a horizontal sectional view illustrating a slight modification of the invention.

Corresponding and like parts are referred to in the following description and indicated in all the views of the accompanying drawings by the same reference characters.

The rail embodying the present invention is formed from a sheet metal blank which is relatively narrow and has parallel side edges, and this blank is bent along parallel lines, as at 1, to form the bottom of the channel rail, indicated by the numeral 2, and the sides thereof, indicated by the numeral 3. Each of the sides 3 is folded upon itself, as at 4, with the edge of the fold seating in the respective bend 1. It will be observed, from inspection of Fig. 4L of the drawing, that the folds of each side are spaced from each other at and adjacent the folds 4. By so constructing the sides of the rails, they will frictionally grip the beads of the window or porch frame and prevent rattling of the screen in windy weather, as well as serving to a certain extent to hold the screen at any desired elevation, although means is provided for accomplishing this specific result, as will be presently explained.

In arranging the rails upon a screen to be mounted, one rail is secured to each stile of the screen frame by means of screws or other securing elements fastened through the bot-tom of the rail. A rigid friction block 5, preferably of wood, is secured in the channel of one of the rails at each end thereof and these friction blocks are arranged to ride against the edge of one of the beads 6 secured to the stiles of the window or porch frame and upon which the screen is mounted to slide. The other rail of the screen is formed in its bottom wall, near each end, with an opening 7 and the stile of the screen frame, to which this latter rail is secured, is formed with a recess 8 registering at one end with the correspond ing opening 7 A leaf spring 9 is inserted at one end through each of the openings 7 and into the recess 8 and has a free portion 10 project-ing toward the adjacent end of the rail and spaced from the bottom wall thereof. The free portions of the springs are designed to bear frictionally against the edge of the other one of the beads 6 between which the screen is mounted to slide, and these springs cooperate with the blocks 5 to hold the screen at the desired elevation. The portions 10 of the springs are furthermore so spaced from the bottom wall of the rail in which they are mounted that the screen may be shoved sidewise to compress these portions of the springs and disengage the first described rail from the bead 6 upon which it slides. I11 this manner, the screen may be readily removed from and placed in the window or porch frame.

It will be understood from the foregoing that while the blocks 5 and springs 9 provided for the purpose of holding the screen at any desired elevation, possess marked advantages, they may be omitted if desired without detracting from the advantageous results secured by the use of the peculiar form of rail shown and described.

In Figs. 5 and 6 of the drawings, in which the invention is illustrated as embodied in a porch screen, the blocks 5 and springs 9 are omitted, as it is stated above they may be,

. and in these figures the frame in which the screen is mounted is indicated by the numeral 11 and has fixed upon it an eye 12 which is engaged by a hook 13 pivoted upon the stile of the screen frame.

In Fig. 6 of the drawing, illustrating a cross section through the rail shown in Fig. 5, the sides of the rail are folded outwardly instead of inwardly as in the case of the rail shown in Figs. 1 to 1. inclusive of the drawings. Substantially the same binding action is secured, however, by this modified structure.

In the form of the invention shown in Fig. 7 of the drawing, there is shown a channel rail also formed from a sheet metal blank 8 along parallel lines to form the bottom of the rail indicated by the numeral 13 and which has its side portions folded upon themselves to form the sides 141 of the channel and terminating in attaching portions 15 extending beyond the bottom 13 and having secured through them screws or nails 16.

Having thus described the invention, what is claimed as new is:

1. The combination with a Window screen or the like, of channel rails secured to opposite sides thereof, a rigid friction element arranged in the channel of one rail, and a leaf spring arranged in the channel of the other rail, the latter rail being formed in its bottom with an opening and the said leaf spring having one of its ends inserted through the opening and held between the said bottom of the rail and the side of the screen to which the rail is secured.

2. The combination with a window screen or the like, of channel rails secured to the opposite sides thereof, the rail at one side of the screen being formed in its bottom wall with an opening, the said side of the screen being formed with a recess registering with the opening, and a leaf spring inserted at one end through the opening and into the recess.

3. As a new article of manufacture, a channel rail for window screens and the like formed from a sheet metal blank bent along parallel lines to form the sides and bottom of the channel, and the sides being folded upon themselves, and their folds being free to expand.

a. As a new article of manufacture, a channel rail for window screens and the like formed from a sheet metal blank bent along parallel lines to form the sides and bottom of the channel, each side being folded upon itself along a line parallel to the first mentioned lines of bend, and the folds of each side being spaced at and adjacent the line of fold.

5. As a new article of manufacture, a channel rail for window screens and the like formed from a sheet metal blank bent along parallel lines to form the sides and bottom of the channel, each side being folded upon itself along a line parallel to the first mentioned lines of bend, and the folds of each side being spaced at and adjacent the line of fold, the edge of the fold of each side seating in the bend between the said side and the bottom of the rail.

In testimony whereof, I a'lfiX my signature in presence of two witnesses.

CHARLES J. CARLSON. [n s.]

IVitnesses Trros. P. 001),

PATRICK IV. VVooos.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

